Commit Graph

6165 Commits

Author SHA1 Message Date
Linus Torvalds
37c85961c3 TTY/Serial driver patches for 4.11-rc1
Here is the big tty/serial driver patchset for 4.11-rc1.
 
 Not much here, but a lot of little fixes and individual serial driver
 updates all over the subsystem.  Majority are for the sh-sci driver and
 platform (the arch-specific changes have acks from the maintainer).
 
 The start of the "serial bus" code is here as well, but nothing is
 converted to use it yet.  That work is still ongoing, hopefully will
 start to show up across different subsystems for 4.12 (bluetooth is one
 major place that will be used.)
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial driver updates from Greg KH:
 "Here is the big tty/serial driver patchset for 4.11-rc1.

  Not much here, but a lot of little fixes and individual serial driver
  updates all over the subsystem. Majority are for the sh-sci driver and
  platform (the arch-specific changes have acks from the maintainer).

  The start of the "serial bus" code is here as well, but nothing is
  converted to use it yet. That work is still ongoing, hopefully will
  start to show up across different subsystems for 4.12 (bluetooth is
  one major place that will be used.)

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'tty-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (109 commits)
  tty: pl011: Work around QDF2400 E44 stuck BUSY bit
  atmel_serial: Use the fractional divider when possible
  tty: Remove extra include in HVC console tty framework
  serial: exar: Enable MSI support
  serial: exar: Move register defines from uapi header to consumer site
  serial: pci: Remove unused pci_boards entries
  serial: exar: Move Commtech adapters to 8250_exar as well
  serial: exar: Fix feature control register constants
  serial: exar: Fix initialization of EXAR registers for ports > 0
  serial: exar: Fix mapping of port I/O resources
  serial: sh-sci: fix hardware RX trigger level setting
  tty/serial: atmel: ensure state is restored after suspending
  serial: 8250_dw: Avoid "too much work" from bogus rx timeout interrupt
  serdev: ttyport: check whether tty_init_dev() fails
  serial: 8250_pci: make pciserial_detach_ports() static
  ARM: dts: STiH410-b2260: Enable HW flow-control
  ARM: dts: STiH407-family: Use new Pinctrl groups
  ARM: dts: STiH407-pinctrl: Add Pinctrl group for HW flow-control
  ARM: dts: STiH410-b2260: Identify the UART RTS line
  dt-bindings: serial: Update 'uart-has-rtscts' description
  ...
2017-02-22 12:17:25 -08:00
Linus Torvalds
ca78d3173c arm64 updates for 4.11:
- Errata workarounds for Qualcomm's Falkor CPU
 - Qualcomm L2 Cache PMU driver
 - Qualcomm SMCCC firmware quirk
 - Support for DEBUG_VIRTUAL
 - CPU feature detection for userspace via MRS emulation
 - Preliminary work for the Statistical Profiling Extension
 - Misc cleanups and non-critical fixes
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 updates from Will Deacon:
 - Errata workarounds for Qualcomm's Falkor CPU
 - Qualcomm L2 Cache PMU driver
 - Qualcomm SMCCC firmware quirk
 - Support for DEBUG_VIRTUAL
 - CPU feature detection for userspace via MRS emulation
 - Preliminary work for the Statistical Profiling Extension
 - Misc cleanups and non-critical fixes

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (74 commits)
  arm64/kprobes: consistently handle MRS/MSR with XZR
  arm64: cpufeature: correctly handle MRS to XZR
  arm64: traps: correctly handle MRS/MSR with XZR
  arm64: ptrace: add XZR-safe regs accessors
  arm64: include asm/assembler.h in entry-ftrace.S
  arm64: fix warning about swapper_pg_dir overflow
  arm64: Work around Falkor erratum 1003
  arm64: head.S: Enable EL1 (host) access to SPE when entered at EL2
  arm64: arch_timer: document Hisilicon erratum 161010101
  arm64: use is_vmalloc_addr
  arm64: use linux/sizes.h for constants
  arm64: uaccess: consistently check object sizes
  perf: add qcom l2 cache perf events driver
  arm64: remove wrong CONFIG_PROC_SYSCTL ifdef
  ARM: smccc: Update HVC comment to describe new quirk parameter
  arm64: do not trace atomic operations
  ACPI/IORT: Fix the error return code in iort_add_smmu_platform_device()
  ACPI/IORT: Fix iort_node_get_id() mapping entries indexing
  arm64: mm: enable CONFIG_HOLES_IN_ZONE for NUMA
  perf: xgene: Include module.h
  ...
2017-02-22 10:46:44 -08:00
Linus Torvalds
43e31e4047 ACPI updates for v4.11-rc1
- Update of the ACPICA code in the kernel to upstream revision
    20170119 including:
    * Fixes related to the handling of the bit width and bit offset
      fields in Generic Address Structure (Lv Zheng).
    * ACPI resources handling fix related to invalid resource
      descriptors (Bob Moore).
    * Fix to enable implicit result conversion for several ASL
      library functions (Bob Moore).
    * Support for method invocations as target operands in AML
      (Bob Moore).
    * Fix to use a correct operand type for DeRefOf() in some
      situations (Bob Moore).
    * Utilities updates (Bob Moore, Lv Zheng).
    * Disassembler/debugger updates (David Box, Lv Zheng).
    * Build fixes (Colin Ian King, Lv Zheng).
    * Update of copyright notices in all files (Bob Moore).
 
  - Fix for modalias handling for SPI and I2C devices with
    DT-compatible identification strings (Dan O'Donovan).
 
  - Fixes for the ACPI EC and button drivers (Lv Zheng).
 
  - ACPI processor handling fix related to CPU hotplug (online/offline)
    on x86 (Vitaly Kuznetsov).
 
  - Suspend quirk to save/restore NVS memory over S3 transitions for
    Lenovo G50-45 (Zhang Rui).
 
  - Message formatting fix for the ACPI APEI code (Colin Ian King).
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Merge tag 'acpi-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
 "These update the ACPICA code in the kernel to upstream revision
  20170119, which among other things updates copyright notices in all of
  the ACPICA files, fix a couple of issues in the ACPI EC and button
  drivers, fix modalias handling for non-discoverable devices with
  DT-compatible identification strings, add a suspend quirk for one
  platform and fix a message in the APEI code.

  Specifics:

   - Update of the ACPICA code in the kernel to upstream revision
     20170119 including:

      + Fixes related to the handling of the bit width and bit offset
        fields in Generic Address Structure (Lv Zheng)
      + ACPI resources handling fix related to invalid resource
        descriptors (Bob Moore)
      + Fix to enable implicit result conversion for several ASL library
        functions (Bob Moore)
      + Support for method invocations as target operands in AML (Bob
        Moore)
      + Fix to use a correct operand type for DeRefOf() in some
        situations (Bob Moore)
      + Utilities updates (Bob Moore, Lv Zheng)
      + Disassembler/debugger updates (David Box, Lv Zheng)
      + Build fixes (Colin Ian King, Lv Zheng)
      + Update of copyright notices in all files (Bob Moore)

   - Fix for modalias handling for SPI and I2C devices with
     DT-compatible identification strings (Dan O'Donovan)

   - Fixes for the ACPI EC and button drivers (Lv Zheng)

   - ACPI processor handling fix related to CPU hotplug (online/offline)
     on x86 (Vitaly Kuznetsov)

   - Suspend quirk to save/restore NVS memory over S3 transitions for
     Lenovo G50-45 (Zhang Rui)

   - Message formatting fix for the ACPI APEI code (Colin Ian King)"

* tag 'acpi-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (32 commits)
  ACPICA: Update version to 20170119
  ACPICA: Tools: Update common signon, remove compilation bit width
  ACPICA: Source tree: Update copyright notices to 2017
  ACPICA: Linuxize: Restore and fix Intel compiler build
  x86/ACPI: keep x86_cpu_to_acpiid mapping valid on CPU hotplug
  spi: acpi: Initialize modalias from of_compatible
  i2c: acpi: Initialize info.type from of_compatible
  ACPI / bus: Introduce acpi_of_modalias() equiv of of_modalias_node()
  ACPI: save NVS memory for Lenovo G50-45
  ACPI, APEI, EINJ: fix malformed newline escape
  ACPI / button: Remove lid_init_state=method mode
  ACPI / button: Change default behavior to lid_init_state=open
  ACPI / EC: Use busy polling mode when GPE is not enabled
  ACPI / EC: Remove old CLEAR_ON_RESUME quirk
  ACPICA: Update version to 20161222
  ACPICA: Parser: Update parse info table for some operators
  ACPICA: Fix a problem with recent extra support for control method invocations
  ACPICA: Parser: Allow method invocations as target operands
  ACPICA: Fix for implicit result conversion for the ToXXX functions
  ACPICA: Resources: Not a valid resource if buffer length too long
  ..
2017-02-20 17:55:15 -08:00
Linus Torvalds
02c3de1105 Power management updates for v4.11-rc1
- Operating Performance Points (OPP) framework fixes, cleanups and
    switch over from RCU-based synchronization to reference counting
    using krefs (Viresh Kumar, Wei Yongjun, Dave Gerlach).
 
  - cpufreq core cleanups and documentation updates (Viresh Kumar,
    Rafael Wysocki).
 
  - New cpufreq driver for Broadcom BMIPS SoCs (Markus Mayer).
 
  - New cpufreq-dt sub-driver for TI SoCs requiring special handling,
    like in the AM335x, AM437x, DRA7x, and AM57x families, along with
    new DT bindings for it (Dave Gerlach, Paul Gortmaker).
 
  - ARM64 SoCs support for the qoriq cpufreq driver (Tang Yuantian).
 
  - intel_pstate driver updates including a new sysfs knob to control
    the driver's operation mode and fixes related to the no_turbo
    sysfs knob and the hardware-managed P-states feature support
    (Rafael Wysocki, Srinivas Pandruvada).
 
  - New interface to export ultra-turbo frequencies for the powernv
    cpufreq driver (Shilpasri Bhat).
 
  - Assorted fixes for cpufreq drivers (Arnd Bergmann, Dan Carpenter,
    Wei Yongjun).
 
  - devfreq core fixes, mostly related to the sysfs interface exported
    by it (Chanwoo Choi, Chris Diamand).
 
  - Updates of the exynos-bus and exynos-ppmu devfreq drivers (Chanwoo
    Choi).
 
  - Device PM QoS extension to support CPUs and support for per-CPU
    wakeup (device resume) latency constraints in the cpuidle menu
    governor (Alex Shi).
 
  - Wakeup IRQs framework fixes (Grygorii Strashko).
 
  - Generic power domains framework update including a fix to make
    it handle asynchronous invocations of *noirq suspend/resume
    callbacks correctly (Ulf Hansson, Geert Uytterhoeven).
 
  - Assorted fixes and cleanups in the core suspend/hibernate code,
    PM QoS framework and x86 ACPI idle support code (Corentin Labbe,
    Geert Uytterhoeven, Geliang Tang, John Keeping, Nick Desaulniers).
 
  - Update of the analyze_suspend.py script is updated to version 4.5
    offering multiple improvements (Todd Brandt).
 
  - New tool for intel_pstate diagnostics using the pstate_sample
    tracepoint (Doug Smythies).
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Merge tag 'pm-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "The majority of changes go into the Operating Performance Points (OPP)
  framework and cpufreq this time, followed by devfreq and some
  scattered updates all over.

  The OPP changes are mostly related to switching over from RCU-based
  synchronization, that turned out to be overly complicated and
  problematic, to reference counting using krefs.

  In the cpufreq land there are core cleanups, documentation updates, a
  new driver for Broadcom BMIPS SoCs, a new cpufreq-dt sub-driver for TI
  SoCs that require special handling, ARM64 SoCs support for the qoriq
  driver, intel_pstate updates, powernv driver update and assorted
  fixes.

  The devfreq changes are mostly fixes related to the sysfs interface
  and some Exynos drivers updates.

  Apart from that, the cpuidle menu governor will support per-CPU PM QoS
  constraints for the wakeup latency now, some bugs in the wakeup IRQs
  framework are fixed, the generic power domains framework should handle
  asynchronous invocations of *noirq suspend/resume callbacks from now
  on, the analyze_suspend.py script is updated and there is a new tool
  for intel_pstate diagnostics.

  Specifics:

   - Operating Performance Points (OPP) framework fixes, cleanups and
     switch over from RCU-based synchronization to reference counting
     using krefs (Viresh Kumar, Wei Yongjun, Dave Gerlach)

   - cpufreq core cleanups and documentation updates (Viresh Kumar,
     Rafael Wysocki)

   - New cpufreq driver for Broadcom BMIPS SoCs (Markus Mayer)

   - New cpufreq-dt sub-driver for TI SoCs requiring special handling,
     like in the AM335x, AM437x, DRA7x, and AM57x families, along with
     new DT bindings for it (Dave Gerlach, Paul Gortmaker)

   - ARM64 SoCs support for the qoriq cpufreq driver (Tang Yuantian)

   - intel_pstate driver updates including a new sysfs knob to control
     the driver's operation mode and fixes related to the no_turbo sysfs
     knob and the hardware-managed P-states feature support (Rafael
     Wysocki, Srinivas Pandruvada)

   - New interface to export ultra-turbo frequencies for the powernv
     cpufreq driver (Shilpasri Bhat)

   - Assorted fixes for cpufreq drivers (Arnd Bergmann, Dan Carpenter,
     Wei Yongjun)

   - devfreq core fixes, mostly related to the sysfs interface exported
     by it (Chanwoo Choi, Chris Diamand)

   - Updates of the exynos-bus and exynos-ppmu devfreq drivers (Chanwoo
     Choi)

   - Device PM QoS extension to support CPUs and support for per-CPU
     wakeup (device resume) latency constraints in the cpuidle menu
     governor (Alex Shi)

   - Wakeup IRQs framework fixes (Grygorii Strashko)

   - Generic power domains framework update including a fix to make it
     handle asynchronous invocations of *noirq suspend/resume callbacks
     correctly (Ulf Hansson, Geert Uytterhoeven)

   - Assorted fixes and cleanups in the core suspend/hibernate code, PM
     QoS framework and x86 ACPI idle support code (Corentin Labbe, Geert
     Uytterhoeven, Geliang Tang, John Keeping, Nick Desaulniers)

   - Update of the analyze_suspend.py script is updated to version 4.5
     offering multiple improvements (Todd Brandt)

   - New tool for intel_pstate diagnostics using the pstate_sample
     tracepoint (Doug Smythies)"

* tag 'pm-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (85 commits)
  MAINTAINERS: cpufreq: add bmips-cpufreq.c
  PM / QoS: Fix memory leak on resume_latency.notifiers
  PM / Documentation: Spelling s/wrtie/write/
  PM / sleep: Fix test_suspend after sleep state rework
  cpufreq: CPPC: add ACPI_PROCESSOR dependency
  cpufreq: make ti-cpufreq explicitly non-modular
  cpufreq: Do not clear real_cpus mask on policy init
  tools/power/x86: Debug utility for intel_pstate driver
  AnalyzeSuspend: fix drag and zoom bug in javascript
  PM / wakeirq: report a wakeup_event on dedicated wekup irq
  PM / wakeirq: Fix spurious wake-up events for dedicated wakeirqs
  PM / wakeirq: Enable dedicated wakeirq for suspend
  cpufreq: dt: Don't use generic platdev driver for ti-cpufreq platforms
  cpufreq: ti: Add cpufreq driver to determine available OPPs at runtime
  Documentation: dt: add bindings for ti-cpufreq
  PM / OPP: Expose _of_get_opp_desc_node as dev_pm_opp API
  cpufreq: qoriq: Don't look at clock implementation details
  cpufreq: qoriq: add ARM64 SoCs support
  PM / Domains: Provide dummy governors if CONFIG_PM_GENERIC_DOMAINS=n
  cpufreq: brcmstb-avs-cpufreq: remove unnecessary platform_set_drvdata()
  ...
2017-02-20 17:41:31 -08:00
Linus Torvalds
ebb4949eb3 IOMMU Updates for Linux v4.11
The changes include:
 
 	* KVM PCIe/MSI passthrough support on ARM/ARM64
 
 	* Introduction of a core representation for individual hardware
 	  iommus
 
 	* Support for IOMMU privileged mappings as supported by some
 	  ARM IOMMUS
 
 	* 16-bit SID support for ARM-SMMUv2
 
 	* Stream table optimization for ARM-SMMUv3
 
 	* Various fixes and other small improvements
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Merge tag 'iommu-updates-v4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull IOMMU UPDATES from Joerg Roedel:

 - KVM PCIe/MSI passthrough support on ARM/ARM64

 - introduction of a core representation for individual hardware iommus

 - support for IOMMU privileged mappings as supported by some ARM IOMMUS

 - 16-bit SID support for ARM-SMMUv2

 - stream table optimization for ARM-SMMUv3

 - various fixes and other small improvements

* tag 'iommu-updates-v4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (61 commits)
  vfio/type1: Fix error return code in vfio_iommu_type1_attach_group()
  iommu: Remove iommu_register_instance interface
  iommu/exynos: Make use of iommu_device_register interface
  iommu/mediatek: Make use of iommu_device_register interface
  iommu/msm: Make use of iommu_device_register interface
  iommu/arm-smmu: Make use of the iommu_register interface
  iommu: Add iommu_device_set_fwnode() interface
  iommu: Make iommu_device_link/unlink take a struct iommu_device
  iommu: Add sysfs bindings for struct iommu_device
  iommu: Introduce new 'struct iommu_device'
  iommu: Rename struct iommu_device
  iommu: Rename iommu_get_instance()
  iommu: Fix static checker warning in iommu_insert_device_resv_regions
  iommu: Avoid unnecessary assignment of dev->iommu_fwspec
  iommu/mediatek: Remove bogus 'select' statements
  iommu/dma: Remove bogus dma_supported() implementation
  iommu/ipmmu-vmsa: Restrict IOMMU Domain Geometry to 32-bit address space
  iommu/vt-d: Don't over-free page table directories
  iommu/vt-d: Tylersburg isoch identity map check is done too late.
  iommu/vt-d: Fix some macros that are incorrectly specified in intel-iommu
  ...
2017-02-20 16:42:43 -08:00
Linus Torvalds
60c906bab1 Merge branch 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RAS updates from Ingo Molnar:
 "The main changes in this cycle were:

  - Assign notifier chain priorities for all RAS related handlers to
    make the ordering explicit (Borislav Petkov)

  - Improve the AMD MCA banks sysfs output (Yazen Ghannam)

  - Various cleanups and restructuring of the x86 RAS code (Borislav
    Petkov)"

* 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/ras, EDAC, acpi: Assign MCE notifier handlers a priority
  x86/ras: Get rid of mce_process_work()
  EDAC/mce/amd: Dump TSC value
  EDAC/mce/amd: Unexport amd_decode_mce()
  x86/ras/amd/inj: Change dependency
  x86/ras: Flip the TSC-adding logic
  x86/ras/amd: Make sysfs names of banks more user-friendly
  x86/ras/therm_throt: Do not log a fake MCE for thermal events
  x86/ras/inject: Make it depend on X86_LOCAL_APIC=y
2017-02-20 12:47:44 -08:00
Linus Torvalds
32e2d7c8af Merge branch 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI updates from Ingo Molnar:
 "The main changes in this cycle were:

   - Changes to the EFI init code to establish whether secure boot
     authentication was performed at boot time. (Josh Boyer, David
     Howells)

   - Wire up the UEFI memory attributes table for x86. This eliminates
     any runtime memory regions that are both writable and executable,
     on recent firmware versions. (Sai Praneeth)

   - Move the BGRT init code to an earlier stage so that we can still
     use efi_mem_reserve(). (Dave Young)

   - Preserve debug symbols in the ARM/arm64 UEFI stub (Ard Biesheuvel)

   - Code deduplication work and various other cleanups (Lukas Wunner)

   - ... plus various other fixes and cleanups"

* 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  efi/libstub: Make file I/O chunking x86-specific
  efi: Print the secure boot status in x86 setup_arch()
  efi: Disable secure boot if shim is in insecure mode
  efi: Get and store the secure boot status
  efi: Add SHIM and image security database GUID definitions
  arm/efi: Allow invocation of arbitrary runtime services
  x86/efi: Allow invocation of arbitrary runtime services
  efi/libstub: Preserve .debug sections after absolute relocation check
  efi/x86: Add debug code to print cooked memmap
  efi/x86: Move the EFI BGRT init code to early init code
  efi: Use typed function pointers for the runtime services table
  efi/esrt: Fix typo in pr_err() message
  x86/efi: Add support for EFI_MEMORY_ATTRIBUTES_TABLE
  efi: Introduce the EFI_MEM_ATTR bit and set it from the memory attributes table
  efi: Make EFI_MEMORY_ATTRIBUTES_TABLE initialization common across all architectures
  x86/efi: Deduplicate efi_char16_printk()
  efi: Deduplicate efi_file_size() / _read() / _close()
2017-02-20 11:47:11 -08:00
Linus Torvalds
1cd4027cfe Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq updates from Thomas Gleixner:
 "This update provides:

   - Yet another two irq controller chip drivers

   - A few updates and fixes for GICV3

   - A resource managed function for interrupt allocation

   - Fixes, updates and enhancements all over the place"

* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/qcom: Fix error handling
  genirq: Clarify logic calculating bogus irqreturn_t values
  genirq/msi: Add stubs for get_cached_msi_msg/pci_write_msi_msg
  genirq/devres: Use dev_name(dev) as default for devname
  genirq: Fix /proc/interrupts output alignment
  irqdesc: Add a resource managed version of irq_alloc_descs()
  irqchip/gic-v3-its: Zero command on allocation
  irqchip/gic-v3-its: Fix command buffer allocation
  irqchip/mips-gic: Fix local interrupts
  irqchip: Add a driver for Cortina Gemini
  irqchip: DT bindings for Cortina Gemini irqchip
  irqchip/gic-v3: Remove duplicate definition of GICD_TYPER_LPIS
  irqchip/gic-v3-its: Rename MAPVI to MAPTI
  irqchip/gic-v3-its: Drop deprecated GITS_BASER_TYPE_CPU
  irqchip/gic-v3-its: Refactor command encoding
  irqchip/gic-v3-its: Enable cacheable attribute Read-allocate hints
  irqchip/qcom: Add IRQ combiner driver
  ACPI: Add support for ResourceSource/IRQ domain mapping
  ACPI: Generic GSI: Do not attempt to map non-GSI IRQs during bus scan
  irq/platform-msi: Fix comment about maximal MSIs
2017-02-20 10:52:23 -08:00
Rafael J. Wysocki
ac18c0c4e2 Merge branches 'acpi-ec', 'acpi-button' and 'acpi-apei'
* acpi-ec:
  ACPI / EC: Use busy polling mode when GPE is not enabled
  ACPI / EC: Remove old CLEAR_ON_RESUME quirk

* acpi-button:
  ACPI / button: Remove lid_init_state=method mode
  ACPI / button: Change default behavior to lid_init_state=open

* acpi-apei:
  ACPI, APEI, EINJ: fix malformed newline escape
2017-02-20 14:28:51 +01:00
Rafael J. Wysocki
a74d1cafc2 Merge branches 'acpi-bus', 'acpi-sleep' and 'acpi-processor'
* acpi-bus:
  spi: acpi: Initialize modalias from of_compatible
  i2c: acpi: Initialize info.type from of_compatible
  ACPI / bus: Introduce acpi_of_modalias() equiv of of_modalias_node()

* acpi-sleep:
  ACPI: save NVS memory for Lenovo G50-45

* acpi-processor:
  x86/ACPI: keep x86_cpu_to_acpiid mapping valid on CPU hotplug
2017-02-20 14:28:03 +01:00
Rafael J. Wysocki
014f40393e Merge branch 'acpica'
* acpica: (22 commits)
  ACPICA: Update version to 20170119
  ACPICA: Tools: Update common signon, remove compilation bit width
  ACPICA: Source tree: Update copyright notices to 2017
  ACPICA: Linuxize: Restore and fix Intel compiler build
  ACPICA: Update version to 20161222
  ACPICA: Parser: Update parse info table for some operators
  ACPICA: Fix a problem with recent extra support for control method invocations
  ACPICA: Parser: Allow method invocations as target operands
  ACPICA: Fix for implicit result conversion for the ToXXX functions
  ACPICA: Resources: Not a valid resource if buffer length too long
  ACPICA: Utilities: Update debug output
  ACPICA: Disassembler: Add Switch/Case disassembly support
  ACPICA: EFI: Add efihello demo application
  ACPICA: MSVC: Fix MSVC6 build issues
  ACPICA: Linux-specific header: Add support for s390x compilation
  ACPICA: Hardware: Add sleep register hooks
  ACPICA: Macro header: Fix some typos in comments
  ACPICA: Hardware: Sort access bit width algorithm
  ACPICA: Utilities: Add power of two rounding support
  ACPICA: Hardware: Add access_width/bit_offset support in acpi_hw_write()
  ...
2017-02-20 14:27:08 +01:00
Rafael J. Wysocki
f6cbe34f52 Merge branch 'pm-cpufreq'
* pm-cpufreq: (28 commits)
  MAINTAINERS: cpufreq: add bmips-cpufreq.c
  cpufreq: CPPC: add ACPI_PROCESSOR dependency
  cpufreq: make ti-cpufreq explicitly non-modular
  cpufreq: Do not clear real_cpus mask on policy init
  cpufreq: dt: Don't use generic platdev driver for ti-cpufreq platforms
  cpufreq: ti: Add cpufreq driver to determine available OPPs at runtime
  Documentation: dt: add bindings for ti-cpufreq
  cpufreq: qoriq: Don't look at clock implementation details
  cpufreq: qoriq: add ARM64 SoCs support
  cpufreq: brcmstb-avs-cpufreq: remove unnecessary platform_set_drvdata()
  cpufreq: s3c2416: double free on driver init error path
  MIPS: BMIPS: enable CPUfreq
  cpufreq: bmips-cpufreq: CPUfreq driver for Broadcom's BMIPS SoCs
  BMIPS: Enable prerequisites for CPUfreq in MIPS Kconfig.
  MIPS: BMIPS: Update defconfig
  cpufreq: Fix typos in comments
  cpufreq: intel_pstate: Calculate guaranteed performance for HWP
  cpufreq: intel_pstate: Make HWP limits compatible with legacy
  cpufreq: intel_pstate: Lower frequency than expected under no_turbo
  cpufreq: intel_pstate: Operation mode control from sysfs
  ...
2017-02-20 14:23:00 +01:00
Christopher Covington
d8a4995bce tty: pl011: Work around QDF2400 E44 stuck BUSY bit
The Qualcomm Datacenter Technologies QDF2400 family of SoCs contains a
custom (non-PrimeCell) implementation of the SBSA UART. Occasionally the
BUSY bit in the Flag Register gets stuck as 1, erratum 44 for both 2432v1
and 2400v1 SoCs.Checking that the Transmit FIFO Empty (TXFE) bit is 0,
instead of checking that the BUSY bit is 1, works around the issue.

To facilitate this substitution of flags and values, introduce
vendor-specific inversion of Feature Register bits when UART AMBA Port
(UAP) data is available. For the earlycon case, prior to UAP availability,
implement alternative putc and early_write functions.

Similar to what how ARMv8 ACPI PCI quirks are detected during MCFG parsing,
check the OEM fields of the Serial Port Console Redirection (SPCR) ACPI
table to determine if the current platform is known to be affected by the
erratum.

Signed-off-by: Christopher Covington <cov@codeaurora.org>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Acked-by: Timur Tabi <timur@codeaurora.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-15 14:46:43 -08:00
Joerg Roedel
8d2932dd06 Merge branches 'iommu/fixes', 'arm/exynos', 'arm/renesas', 'arm/smmu', 'arm/mediatek', 'arm/core', 'x86/vt-d' and 'core' into next 2017-02-10 15:13:10 +01:00
Joerg Roedel
534766dfef iommu: Rename iommu_get_instance()
Rename the function to iommu_ops_from_fwnode(), because that
is what the function actually does. The new name is much
more descriptive about what the function does.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
2017-02-10 13:44:57 +01:00
Bob Moore
892411dd05 ACPICA: Tools: Update common signon, remove compilation bit width
ACPICA commit 43e04e75a9849072a1557b674004d8093bddb9ef

Remove the bit width of the compiler that generated the tool
from the tool signon. This was confusing and unnecessary.

Changed the iASL signon to add "disassembler" to the name.

Link: https://github.com/acpica/acpica/commit/43e04e75
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-02-09 14:47:42 +01:00
Bob Moore
7735ca0eb4 ACPICA: Source tree: Update copyright notices to 2017
ACPICA commit 16577e5265923f4999b4d2c0addb2343b18135e1

Affects all files.

Link: https://github.com/acpica/acpica/commit/16577e52
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-02-09 14:47:02 +01:00
Vitaly Kuznetsov
febf240741 x86/ACPI: keep x86_cpu_to_acpiid mapping valid on CPU hotplug
We may or may not have all possible CPUs in MADT on boot but in any
case we're overwriting x86_cpu_to_acpiid mapping with U32_MAX when
acpi_register_lapic() is called again on the CPU hotplug path:

acpi_processor_hotadd_init()
  -> acpi_map_cpu()
    -> acpi_register_lapic()

As we have the required acpi_id information in acpi_processor_hotadd_init()
propagate it to acpi_map_cpu() to always keep x86_cpu_to_acpiid
mapping valid.

Reported-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-02-07 13:34:56 +01:00
Dan O'Donovan
51ede5d966 ACPI / bus: Introduce acpi_of_modalias() equiv of of_modalias_node()
When using devicetree stuff like i2c_client.name or spi_device.modalias
is initialized to the first DT compatible id with the vendor prefix
stripped. Since some drivers rely on this try to replicate it when using
ACPI with DT ids.

Signed-off-by: Dan O'Donovan <dan@emutex.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Tested-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-02-07 13:31:50 +01:00
Ingo Molnar
87a8d03266 Linux 4.10-rc7
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Merge tag 'v4.10-rc7' into efi/core, to pick up fixes

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-02-07 08:49:17 +01:00
Linus Torvalds
8b1b41ee74 Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm fixes from Dan Williams:
 "None of these are showstoppers for 4.10 and could wait for 4.11 merge
  window, but they are low enough risk for this late in the cycle and
  the fixes have waiting users . They have received a build success
  notification from the 0day robot, pass the latest ndctl unit tests,
  and appeared in next:

   - Fix a crash that can result when SIGINT is sent to a process that
     is awaiting completion of an address range scrub command. We were
     not properly cleaning up the workqueue after
     wait_event_interruptible().

   - Fix a memory hotplug failure condition that results from not
     reserving enough space out of persistent memory for the memmap. By
     default we align to 2M allocations that the memory hotplug code
     assumes, but if the administrator specifies a non-default
     4K-alignment then we can fail to correctly size the reservation.

   - A one line fix to improve the predictability of libnvdimm block
     device names. A common operation is to reconfigure /dev/pmem0 into
     a different mode. For example, a reconfiguration might set a new
     mode that reserves some of the capacity for a struct page memmap
     array. It surprises users if the device name changes to
     "/dev/pmem0.1" after the mode change and then back to /dev/pmem0
     after a reboot.

   - Add 'const' to some function pointer tables"

* 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  libnvdimm, pfn: fix memmap reservation size versus 4K alignment
  acpi, nfit: fix acpi_nfit_flush_probe() crash
  libnvdimm, namespace: do not delete namespace-id 0
  nvdimm: constify device_type structures
2017-02-06 19:36:04 -08:00
Dan Carpenter
5e5afa6cbd ACPI/IORT: Fix the error return code in iort_add_smmu_platform_device()
The function iort_add_smmu_platform_device() accidentally returns 0
(ie PTR_ERR(pdev) where pdev == NULL) if platform_device_alloc() fails;
fix the bug by returning a proper error value.

Fixes: 846f0e9e74 ("ACPI/IORT: Add support for ARM SMMU platform devices creation")
Acked-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
[lorenzo.pieralisi@arm.com: improved commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>

Signed-off-by: Will Deacon <will.deacon@arm.com>
2017-02-06 18:59:52 +00:00
Lorenzo Pieralisi
030abd8a5d ACPI/IORT: Fix iort_node_get_id() mapping entries indexing
Commit 618f535a60 ("ACPI/IORT: Add single mapping function")
introduced a function (iort_node_get_id()) to retrieve ids for IORT
named components.

The iort_node_get_id() takes an index as input to refer to a specific
mapping entry in the named component IORT node mapping array.

For a mapping entry at a given index, iort_node_get_id() should return
the id value (through the id_out function parameter) and the IORT node
output_reference (through function return value) the given mapping entry
refers to.

Technically output_reference values may differ for different map
entries, (see diagram below - mapped id values may refer to different eg
IORT SMMU nodes; the kernel may not be able to handle different
output_reference values for a given named component but the IORT kernel
layer should still report the IORT mappings as reported by firmware) but
current code in iort_node_get_id() fails to use the index function
parameter to return the correct output_reference value (ie it always
returns the output_reference value of the first entry in the mapping
array whilst using the index correctly to retrieve the id value from the
respective entry).

	|----------------------|
	|     named component  |
	|----------------------|
	|      map entry[0]    |
	|----------------------|
	|       id value       |
	| output_reference----------------> eg SMMU 1
	|----------------------|
	|      map entry[1]    |
	|----------------------|
	|       id value       |
	| output_reference----------------> eg SMMU 2
	|----------------------|
		    .
		    .
		    .
	|----------------------|
	|      map entry[N]    |
	|----------------------|
	|       id value       |
	| output_reference----------------> eg SMMU 1
	|----------------------|

Consequently the iort_node_get_id() function always returns the IORT
node pointed at by the output_reference value of the first named
component mapping array entry, irrespective of the index parameter,
which is a bug.

Update the map array entry pointer computation in iort_node_get_id() to
take into account the index value, fixing the issue.

Fixes: 618f535a60 ("ACPI/IORT: Add single mapping function")
Reported-by: Hanjun Guo <hanjun.guo@linaro.org>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Hanjun Guo <hanjun.guo@linaro.org>
Cc: Sinan Kaya <okaya@codeaurora.org>
Cc: Tomasz Nowicki <tn@semihalf.com>
Cc: Nate Watterson <nwatters@codeaurora.org>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2017-02-06 18:59:37 +00:00
Viresh Kumar
fa29ae5f22 ACPI: processor_perflib: Simplify code and stop using CPUFREQ_START
acpi_processor_ppc_notifier() can live without using CPUFREQ_START
(which is gonna be removed soon), as it is only used while setting
ignore_ppc to 0. This can be done with the help of "ignore_ppc < 0"
check alone. The notifier function anyway ignores all events except
CPUFREQ_ADJUST and dropping CPUFREQ_START wouldn't harm at all.

Once CPUFREQ_START event is removed from the cpufreq core,
acpi_processor_ppc_notifier() will get called only for CPUFREQ_NOTIFY or
CPUFREQ_ADJUST event. Drop the return statement from the first if block
to make sure we don't ignore any such events.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-02-04 00:05:29 +01:00
Dan Williams
e471486c13 acpi, nfit: fix acpi_nfit_flush_probe() crash
We queue an on-stack work item to 'nfit_wq' and wait for it to complete
as part of a 'flush_probe' request. However, if the user cancels the
wait we need to make sure the item is flushed from the queue otherwise
we are leaving an out-of-scope stack address on the work list.

 BUG: unable to handle kernel paging request at ffffbcb3c72f7cd0
 IP: [<ffffffffa9413a7b>] __list_add+0x1b/0xb0
 [..]
 RIP: 0010:[<ffffffffa9413a7b>]  [<ffffffffa9413a7b>] __list_add+0x1b/0xb0
 RSP: 0018:ffffbcb3c7ba7c00  EFLAGS: 00010046
 [..]
 Call Trace:
  [<ffffffffa90bb11a>] insert_work+0x3a/0xc0
  [<ffffffffa927fdda>] ? seq_open+0x5a/0xa0
  [<ffffffffa90bb30a>] __queue_work+0x16a/0x460
  [<ffffffffa90bbb08>] queue_work_on+0x38/0x40
  [<ffffffffc0cf2685>] acpi_nfit_flush_probe+0x95/0xc0 [nfit]
  [<ffffffffc0cf25d0>] ? nfit_visible+0x40/0x40 [nfit]
  [<ffffffffa9571495>] wait_probe_show+0x25/0x60
  [<ffffffffa9546b30>] dev_attr_show+0x20/0x50

Fixes: 7ae0fa439f ("nfit, libnvdimm: async region scrub workqueue")
Cc: <stable@vger.kernel.org>
Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2017-02-03 11:47:36 -08:00
Agustin Vega-Frias
d44fa3d460 ACPI: Add support for ResourceSource/IRQ domain mapping
ACPI extended IRQ resources may contain a ResourceSource to specify
an alternate interrupt controller. Introduce acpi_irq_get and use it
to implement ResourceSource/IRQ domain mapping.

The new API is similar to of_irq_get and allows re-initialization
of a platform resource from the ACPI extended IRQ resource, and
provides proper behavior for probe deferral when the domain is not
yet present when called.

Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Tested-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Agustin Vega-Frias <agustinv@codeaurora.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2017-02-03 15:03:48 +00:00
Agustin Vega-Frias
fa20b176f6 ACPI: Generic GSI: Do not attempt to map non-GSI IRQs during bus scan
ACPI extended IRQ resources may contain a Resource Source field to specify
an alternate interrupt controller, attempting to map them as GSIs is
incorrect, so just disable the platform resource.

Since this field is currently ignored, we make this change conditional
on CONFIG_ACPI_GENERIC_GSI to keep the current behavior on x86 platforms,
in case some existing ACPI tables are using this incorrectly.

Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Tested-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Agustin Vega-Frias <agustinv@codeaurora.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2017-02-03 15:03:40 +00:00
Dave Young
7b0a911478 efi/x86: Move the EFI BGRT init code to early init code
Before invoking the arch specific handler, efi_mem_reserve() reserves
the given memory region through memblock.

efi_bgrt_init() will call efi_mem_reserve() after mm_init(), at which
time memblock is dead and should not be used anymore.

The EFI BGRT code depends on ACPI initialization to get the BGRT ACPI
table, so move parsing of the BGRT table to ACPI early boot code to
ensure that efi_mem_reserve() in EFI BGRT code still use memblock safely.

Tested-by: Bhupesh Sharma <bhsharma@redhat.com>
Signed-off-by: Dave Young <dyoung@redhat.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Len Brown <lenb@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-acpi@vger.kernel.org
Cc: linux-efi@vger.kernel.org
Link: http://lkml.kernel.org/r/1485868902-20401-9-git-send-email-ard.biesheuvel@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-02-01 08:45:46 +01:00
Zhang Rui
cbc00c1310 ACPI: save NVS memory for Lenovo G50-45
In commit 821d6f0359 (ACPI / sleep: Do not save NVS for new machines to
accelerate S3), to optimize S3 suspend/resume speed, code is introduced
to ignore NVS memory saving during S3 for all the platforms later than
2012.

But, Lenovo G50-45, a platform released in 2015, still needs NVS memory
saving during S3. A quirk is introduced for this platform.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=189431
Tested-by: Przemek <soprwa@gmail.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
[ rjw: Drop unnecessary code ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-01-31 22:46:59 +01:00
Colin Ian King
d222678426 ACPI, APEI, EINJ: fix malformed newline escape
The pr_warn message has a malformed newline escape, add in the
missing \

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-01-31 22:39:54 +01:00
Lv Zheng
ecb10b694b ACPI / button: Remove lid_init_state=method mode
The mode is buggy, and lid_init__state=open is more useful than this
mode, so this patch makes it deprecated.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-01-31 17:20:45 +01:00
Lv Zheng
77e9a4aa9d ACPI / button: Change default behavior to lid_init_state=open
More and more platforms need the button.lid_init_state=open quirk. This
patch sets it the default behavior.

If a platform doesn't send lid open event or lid open event is lost due to
the underlying system problems, then we can compare various combinations:
1. systemd/acpid is used to suspend system or not, systemd has a special
   logic forcing open event after resuming;
2. _LID returns a cached value or not.

The result is as follows:

 1. lid_init_state=method
   1. cached
      1. resumed by lid:
         (x) event=close
         (x) systemd=suspends again
         (x) acpid=suspends again
         (x) state=close
      2. resumed by other:
         (o) event=close
         (x) systemd=suspends again
         (x) acpid=suspends again
         (o) state=close
   2. non-cached
      1. resumed by lid:
         (o) event=open
         (o) systemd=resumes
         (o) acpid=resumes
         (o) state=open
      2. resumed by other:
         (o) event=close
         (x) systemd=suspends again
         (x) acpid=suspends again
         (o) state=close
 2. lid_init_state=open
   1. cached
      1. resumed by lid:
         (o) event=open
         (o) systemd=resumes
         (o) acpid=resumes
         (x) state=close
      2. resumed by other:
         (x) event=open
         (o) systemd=resumes
         (o) acpid=resumes
         (o) state=close
   2. non-cached
      1. resumed by lid:
         (o) event=open
         (o) systemd=resumes
         (o) acpid=resumes
         (o) state=open
      2. resumed by other:
         (x) event=open
         (o) systemd=resumes
         (o) acpid=resumes
         (o) state=close
 3. lid_init_state=ignore
   1. cached
      1. resumed by lid:
         (o) event=none
         (x) systemd=suspends again
         (o) acpid=resumes
         (x) state=close
      2. resumed by other:
         (o) event=none
         (x) systemd=suspends again
         (o) acpid=resumes
         (o) state=close
   2. non-cached
      1. resumed by lid:
         (o) event=none
         (x) systemd=suspends again
         (o) acpid=resumes
         (o) state=open
      2. resumed by other:
         (o) event=none
         (x) systemd=suspends again
         (o) acpid=resumes
         (o) state=close

As a conclusion:
 1. With systemd changed, lid_init_state=ignore has only one problem and the
    problem comes from an underlying issue, not userspace and kernel lid
    handling.
 2. Without systemd changed, lid_init_state=open can be the default
    behavior as the pass ratio is not much worse than lid_init_state=ignore.
 3. lid_init_state=method is buggy, we can have a separate patch to make it
    deprectated.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=187271
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-01-31 17:20:44 +01:00
Lv Zheng
c3a696b6e8 ACPI / EC: Use busy polling mode when GPE is not enabled
When GPE is not enabled, it is not efficient to use the wait polling mode
as it introduces an unexpected scheduler delay.
So before the GPE handler is installed, this patch uses busy polling mode
for all EC(s) and the logic can be applied to non boot EC(s) during the
suspend/resume process.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=191561
Tested-by: Jakobus Schurz <jakobus.schurz@gmail.com>
Tested-by: Chen Yu <yu.c.chen@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-01-30 12:12:52 +01:00
Lv Zheng
4c237371f2 ACPI / EC: Remove old CLEAR_ON_RESUME quirk
IRQ polling logic has been implemented to drain the post-boot/resume
EC events:

 1. Triggered by the following code, invoked from acpi_ec_enable_event():

	if (!test_bit(EC_FLAGS_QUERY_PENDING, &ec->flags))
		advance_transaction(ec);

 2. Drained by the following code, invoked after acpi_ec_complete_query():

	if (status & ACPI_EC_FLAG_SCI)
		acpi_ec_submit_query(ec);

This facility is safer than the old CLEAR_ON_RESUME quirk as the
CLEAR_ON_RESUME quirk sends EC query commands unconditionally. The
behavior is apparently not suitable for firmware that requires
QUERY_HANDSHAKE quirk. Though the QUERY_HANDSHAKE quirk isn't used
now because of the improvement done in the EC transaction state
machine (ec_event_clearing=QUERY), it is the proof that we cannot
send EC query command unconditionally.

So it's time to delete the out-dated CLEAR_ON_RESUME quirk to let the
users to try the newer approach.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=191211
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-01-30 12:12:03 +01:00
Rafael J. Wysocki
1b62d134d3 Merge back earlier ACPICA changes for v4.11. 2017-01-30 08:57:22 +01:00
Linus Torvalds
2287a240a6 ACPI fixes for v4.10-rc6
- Revert a recent change that added an ACPI video blacklist entry
    for HP Pavilion dv6 as it turned to introduce backlight handling
    regressions on some systems (Hans de Goede).
 
  - Fix locking in the ACPICA core to avoid deadlocks related to table
    loading that were exposed by a recent change in that area (Lv Zheng).
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Merge tag 'acpi-4.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fixes from Rafael Wysocki:
 "These fix two regressions introduced recently, one by reverting the
  problematic commit and one by fixing up locking in the ACPICA core.

  Specifics:

   - Revert a recent change that added an ACPI video blacklist entry for
     HP Pavilion dv6 as it turned to introduce backlight handling
     regressions on some systems (Hans de Goede).

   - Fix locking in the ACPICA core to avoid deadlocks related to table
     loading that were exposed by a recent change in that area (Lv
     Zheng)"

* tag 'acpi-4.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  Revert "ACPI / video: Add force_native quirk for HP Pavilion dv6"
  ACPICA: Tables: Fix hidden logic related to acpi_tb_install_standard_table()
2017-01-26 17:27:00 -08:00
Rafael J. Wysocki
0389227dde Merge branches 'acpica' and 'acpi-video'
* acpica:
  ACPICA: Tables: Fix hidden logic related to acpi_tb_install_standard_table()

* acpi-video:
  Revert "ACPI / video: Add force_native quirk for HP Pavilion dv6"
2017-01-27 00:39:02 +01:00
Rafael J. Wysocki
ff7e593c9c Merge branches 'pm-sleep' and 'pm-cpufreq'
* pm-sleep:
  Revert "PM / sleep / ACPI: Use the ACPI_FADT_LOW_POWER_S0 flag"

* pm-cpufreq:
  cpufreq: intel_pstate: Fix sysfs limits enforcement for performance policy
2017-01-27 00:08:59 +01:00
Hans de Goede
fd25ea2909 Revert "ACPI / video: Add force_native quirk for HP Pavilion dv6"
Revert commit 6276e53fa8 (ACPI / video: Add force_native quirk for
HP Pavilion dv6).

In the commit message for the quirk this revert removes I wrote:

"Note that there are quite a few HP Pavilion dv6 variants, some
woth ATI and some with NVIDIA hybrid gfx, both seem to need this
quirk to have working backlight control. There are also some versions
with only Intel integrated gfx, these may not need this quirk, but it
should not hurt there."

Unfortunately that seems wrong, I've already received 2 reports of
this commit causing regressions on some dv6 variants (at least one
of which actually has a nvidia GPU). So it seems that HP has made a
mess here by using the same model-name both in marketing and in the
DMI data for many different variants. Some of which need
acpi_backlight=native for functional backlight control (as the
quirk this commit reverts was doing), where as others are broken by
it. So lets get back to the old sitation so as to avoid regressing
on models which used to work without any kernel cmdline arguments
before.

Fixes: 6276e53fa8 (ACPI / video: Add force_native quirk for HP Pavilion dv6)
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-01-25 14:04:13 +01:00
Borislav Petkov
9026cc82b6 x86/ras, EDAC, acpi: Assign MCE notifier handlers a priority
Assign all notifiers on the MCE decode chain a priority so that they get
called in the correct order.

Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Yazen Ghannam <Yazen.Ghannam@amd.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/20170123183514.13356-10-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-01-24 09:14:57 +01:00
Lv Zheng
7a37052adb ACPICA: Tables: Fix hidden logic related to acpi_tb_install_standard_table()
There is a hidden logic for acpi_tb_install_standard_table() as it can be
invoked from the boot stage and during runtime.

 1. When it is invoked from the OS boot stage, the ACPICA mutex may not have
    been initialized yet and so acpi_ut_acquire_mutex()/acpi_ut_release_mutex()
    are not invoked in these code paths:

   acpi_initialize_tables
     acpi_tb_parse_root_table
       acpi_tb_install_standard_table (4 invocations)
   acpi_install_table
       acpi_tb_install_standard_table

 2. When it is invoked during the runtime, ACPICA mutex is used as
    appropriate:

   acpi_ex_load_op
     acpi_tb_install_and_load_table
       acpi_tb_install_standard_table
   acpi_load_table
     acpi_tb_install_and_load_table
       acpi_tb_install_standard_table

The mutex is now used in acpi_tb_install_and_load_table(), while it actually
should be in acpi_tb_install_standard_table().

This introduces another problem in acpi_tb_install_standard_table() where
acpi_gbl_table_handler is invoked from and the lock contexts are thus not
consistent for the table handlers. This triggers a regression when
acpi_get_table()/acpi_put_table() start to hold table mutex during runtime.

The regression is noticed by LKP as new errors reported by ACPICA mutex
debugging facility.

[    2.043693] ACPI Error: Mutex [ACPI_MTX_Tables] already acquired by this thread [497483776] (20160930/utmutex-254)
[    2.054084] ACPI Error: Mutex [0x2] is not acquired, cannot release (20160930/utmutex-326)

And it triggers a deadlock:

[  247.066214] INFO: task swapper/0:1 blocked for more than 120 seconds.
...
[  247.091271] Call Trace:
...
[  247.121523]  down_timeout+0x47/0x50
[  247.125065]  acpi_os_wait_semaphore+0x47/0x62
[  247.129475]  acpi_ut_acquire_mutex+0x43/0x81
[  247.133798]  acpi_get_table+0x2d/0x84
[  247.137513]  acpi_table_attr_init+0xcd/0x100
[  247.146590]  acpi_sysfs_table_handler+0x5d/0xb8
[  247.151174]  acpi_bus_table_handler+0x23/0x2a
[  247.155583]  acpi_tb_install_standard_table+0xe0/0x213
[  247.164489]  acpi_tb_install_and_load_table+0x3a/0x82
[  247.169592]  acpi_ex_load_op+0x194/0x201
...
[  247.200108]  acpi_ns_evaluate+0x1bb/0x247
[  247.204170]  acpi_evaluate_object+0x178/0x274
[  247.213249]  acpi_processor_set_pdc+0x154/0x17b
...
The table mutex is held in acpi_tb_install_and_load_table() and is re-visited by
acpi_get_table().

Noticing that the early mutex requirement actually belongs to the OSL layer
and has already been handled in acpi_os_wait_semaphore()/acpi_os_signal_semaphore(),
the regression canbe fixed by removing this hidden logic from the ACPICA core
to the OS-specific code.

Fixes: 174cc7187e ("ACPICA: Tables: Back port acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux kernel")
Reported-and-tested-by: Tomi Sarvela <tomi.p.sarvela@intel.com>
Reported-by: Ye Xiaolong <xiaolong.ye@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-01-20 03:44:58 +01:00
Rafael J. Wysocki
e326ce013a Revert "PM / sleep / ACPI: Use the ACPI_FADT_LOW_POWER_S0 flag"
Revert commit 08b98d3291 (PM / sleep / ACPI: Use the ACPI_FADT_LOW_POWER_S0
flag) as it caused system suspend (in the default configuration) to fail
on Dell XPS13 (9360) with the Kaby Lake processor.

Fixes: 08b98d3291 (PM / sleep / ACPI: Use the ACPI_FADT_LOW_POWER_S0 flag)
Reported-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-01-20 03:33:57 +01:00
Rafael J. Wysocki
f1dabf0b09 Merge branches 'acpi-scan', 'acpi-sysfs', 'acpi-wdat' and 'acpi-tables'
* acpi-scan:
  ACPI / scan: Prefer devices without _HID/_CID for _ADR matching
  ACPI: Drop misplaced acpi_dma_deconfigure() call from acpi_bind_one()

* acpi-sysfs:
  ACPI / sysfs: Provide quirk mechanism to prevent GPE flooding

* acpi-wdat:
  ACPI / watchdog: Print out error number when device creation fails

* acpi-tables:
  ACPI / DMAR: Avoid passing NULL to acpi_put_table()
2017-01-06 14:36:30 +01:00
Bob Moore
6b50623577 ACPICA: Parser: Update parse info table for some operators
ACPICA commit b90e39948954ff400cff1a3f8effddb67f15460b

Operand for deref_of should not have been a term_arg, should be super_name.
Rename NAME_OR_REF to SIMPLENAME.

Link: https://github.com/acpica/acpica/commit/b90e3994
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-01-05 02:48:22 +01:00
Bob Moore
9a94729137 ACPICA: Fix a problem with recent extra support for control method invocations
ACPICA commit b7dae343fbb8c392999a66f5e08be5744a5d07e2

This change fixes a problem with the recent support that enables
control method invocations as Target operands to many ASL
operators. Eliminates errors similar to:

Needed type [Reference], found [Processor]

Link: https://github.com/acpica/acpica/commit/b7dae343
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-01-05 02:48:22 +01:00
Bob Moore
ce87e09dd8 ACPICA: Parser: Allow method invocations as target operands
ACPICA commit a6cca7a4786cdbfd29cea67e84b5b01a8ae6ff1c

Method invocations as target operands are allowed as target
operands in the ASL grammar. This change implements support
for this. Method must return a reference for this to work
properly at runtime, however.

Link: https://github.com/acpica/acpica/commit/a6cca7a4
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-01-05 02:48:22 +01:00
Bob Moore
74e30f96ad ACPICA: Fix for implicit result conversion for the ToXXX functions
ACPICA commit e1342c9f2dde37a67e916099658b65984ef8a434

Implicit result conversion was incorrectly disabled for the
following functions:
 FromBCD
 ToBCD
 ToDecimalString
 ToHexString
 ToInteger
 ToBuffer

Link: https://github.com/acpica/acpica/commit/e1342c9f
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-01-05 02:48:21 +01:00
Bob Moore
57707a9a77 ACPICA: Resources: Not a valid resource if buffer length too long
ACPICA commit 9f76de2d249b18804e35fb55d14b1c2604d627a1
ACPICA commit b2e89d72ef1e9deefd63c3fd1dee90f893575b3a
ACPICA commit 23b5bbe6d78afd3c5abf3adb91a1b098a3000b2e

The declared buffer length must be the same as the length of the
byte initializer list, otherwise not a valid resource descriptor.

Link: https://github.com/acpica/acpica/commit/9f76de2d
Link: https://github.com/acpica/acpica/commit/b2e89d72
Link: https://github.com/acpica/acpica/commit/23b5bbe6
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-01-02 23:18:47 +01:00
Bob Moore
7225d0467c ACPICA: Utilities: Update debug output
ACPICA commit 082b5b3ee31f74735e166858eeda025288604a5a

Enhancement of miscellaneous debug output.

Link: https://github.com/acpica/acpica/commit/082b5b3e
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-01-02 23:18:46 +01:00
David E. Box
a654b8ca6d ACPICA: Disassembler: Add Switch/Case disassembly support
ACPICA commit 0f6cc80e8af519a3c31184367b0a9be7a399cf53

iasl compiles Switch/Case statements into a single iteration While
loop with If/Else statements. This patch adds support to recognize
this generated compiler output and disassemble it back to the
original Switch statement.

Linux kernel is not affected by this patch.

Link: https://github.com/acpica/acpica/commit/0f6cc80e
Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-01-02 23:18:45 +01:00